This afternoon my daughter came to me with a problem. She had a PDF file that she needed to search but it wouldn’t find any of the keywords. It looked to me like the file was actually an image that was converted to a PDF, so there were no recognized words in the document, just image data.

After confirming this on Twitter and listening to the many recommendations, I downloaded PDFpen and ran OCR on the document. In under a minute (it was a large document), I was able to search and select all text I wanted.